Carrier aggregation scheduling method and base station

Abstract

The embodiment of the invention provides a scheduling method for carrier aggregation and a base station, and belongs to the technical field of wireless communication. The method comprises the following steps: acquiring an alternative auxiliary carrier frequency band for the base station to execute a carrier aggregation scheduling operation from a pilot frequency neighbor cell of the base station; acquiring state data of a base station working in a target carrier frequency band and the alternative auxiliary carrier frequency band; obtaining network performance evaluation parameters of the auxiliary carrier frequency band according to the state data; and determining a target auxiliary carrier frequency from the alternative auxiliary carrier frequency bands according to the network performance evaluation parameters, so that carrier aggregation scheduling operation is executed according to the target auxiliary carrier frequency band. According to the method, the auxiliary carrier adding mode is continuously adjusted and optimized according to the state data of the target carrier frequency band and the alternative auxiliary carrier frequency band in the working environment of the base station, the auxiliary carrier adding effect is obtained from the multi-dimensional angle, then the auxiliary carrier adding accuracy is improved, the optimal carrier aggregation performance is achieved, and the user experience is improved. Therefore, the utilization rate of wireless resources is improved.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and in particular to a scheduling method and a base station for carrier aggregation. Background Art

[0002] At present, 700M, 2.6G, and 4.9G networks all have their own spectrum advantages and disadvantages. For example, 700M has stronger diffraction ability than high frequency, lower propagation loss than high frequency, and less fading than high frequency. Therefore, it has better coverage under the same transmission power, but is limited by the spectrum bandwidth of only 30M for downlink. Although there is a gap between the spectrum characteristics of 2.6G and 4.9G and low frequency, the downlink service performance advantage of 100M bandwidth resources is obvious. Therefore, it is necessary to promote and deploy the carrier aggregation function by integrating the performance of each frequency band.

[0003] Under the existing scheme, after the network has the carrier aggregation function, the addition of the auxiliary carrier is based on measuring the strength of the reference signal receiving power (RSRP) of the inter-frequency neighboring cells. In the process of selecting and adding the auxiliary carrier, once the RSRP strength of the neighboring cell reaches the auxiliary carrier addition threshold (A4) and the combined bandwidth is the same, one of the cells will be randomly selected as the auxiliary carrier. However, this method cannot ensure that the selected auxiliary carrier cell is the best among all configured carrier aggregation relationships. Therefore, the auxiliary carrier scheme set by this method cannot guarantee the optimal effect after the carrier aggregation function is activated, while occupying and consuming the wireless resources of the inter-frequency neighboring cells and consuming the intrinsic computing power of the main carrier, thereby reducing the utilization rate of wireless resources. Summary of the invention

[0004] The main purpose of the embodiments of the present invention is to provide a scheduling method and base station for carrier aggregation, aiming to solve the problem that the existing solutions cannot guarantee the optimal effect after the carrier aggregation function is activated, thereby reducing the utilization rate of wireless resources while occupying and consuming the wireless resources of the heterofrequency neighboring cells and consuming the intrinsic computing power of the main carrier.

[0005] In a first aspect, an embodiment of the present invention provides a carrier aggregation scheduling method, which is applied to a base station, including:

[0006] Acquire a candidate auxiliary carrier frequency band for the base station to perform a carrier aggregation scheduling operation from an inter-frequency neighboring cell of the base station;

[0007] Acquire status data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band;

[0008] Obtaining a network performance evaluation parameter of the auxiliary carrier frequency band according to the status data;

[0009] A target secondary carrier frequency band is determined from the candidate secondary carrier frequency bands according to the network performance evaluation parameter, so that a carrier aggregation scheduling operation is performed according to the target secondary carrier frequency band.

[0010] In a second aspect, an embodiment of the present application further provides a scheduling device for carrier aggregation, including:

[0011] A data acquisition module, used to acquire a candidate auxiliary carrier frequency band for the base station to perform a carrier aggregation scheduling operation from a heterofrequency neighboring cell of the base station;

[0012] An information collection module, used to obtain status data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band;

[0013] A data analysis module, configured to obtain a network performance evaluation parameter of the auxiliary carrier frequency band according to the status data;

[0014] The data determination module is used to determine a target secondary carrier frequency band from the candidate secondary carrier frequency bands according to the network performance evaluation parameter, so that a carrier aggregation scheduling operation is performed according to the target secondary carrier frequency band.

[0015] In the third aspect, an embodiment of the present invention further provides a base station, comprising a processor, a memory, a computer program stored in the memory and executable by the processor, and a data bus for realizing connection communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of any carrier aggregation scheduling method provided in the specification of the present invention are implemented.

[0016] In a fourth aspect, an embodiment of the present invention further provides a storage medium for computer-readable storage, characterized in that the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any carrier aggregation scheduling method provided in the specification of the present invention.

[0017] The embodiment of the present invention provides a carrier aggregation scheduling method and base station, the method obtains an alternative auxiliary carrier frequency band for the base station to perform carrier aggregation scheduling operations from the hetero-frequency neighboring area of ​​the base station; and obtains the status data of the base station working in the target carrier frequency band and the alternative auxiliary carrier frequency band; determines the network performance evaluation parameters of the auxiliary carrier frequency band according to the status data, and then determines the target auxiliary carrier frequency band with the best carrier aggregation effect from the alternative auxiliary carrier frequency band according to the network performance evaluation parameters, thereby performing carrier aggregation scheduling operations according to the target auxiliary carrier frequency band. This method solves the problem that the existing solution cannot guarantee the optimal effect after the carrier aggregation function is activated when the wireless resources of the hetero-frequency neighboring area are occupied and consumed and the intrinsic computing power of the main carrier is consumed, thereby reducing the utilization rate of wireless resources, thereby realizing the accurate addition of auxiliary carrier frequency bands and improving the utilization rate of wireless resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of a flow chart of a carrier aggregation scheduling method provided in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the sub-step 102 flow chart of the carrier aggregation scheduling method;

[0021] Figure 3 for Figure 1 Schematic diagram of the sub-step 103 flow chart of the carrier aggregation scheduling method in;

[0022] Figure 4 A schematic diagram of a specific implementation of a carrier aggregation scheduling method provided by an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the module structure of a carrier aggregation scheduling device provided in an embodiment of the present invention;

[0024] Figure 6 A schematic block diagram of the structure of a base station provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0027] It should be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0028] The embodiment of the present invention provides a carrier aggregation scheduling method and a base station, wherein the carrier aggregation scheduling method can be applied to the base station.

[0029] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0030] Please refer to Figure 1 , Figure 1 A schematic diagram of a flow chart of a carrier aggregation scheduling method provided in an embodiment of the present invention.

[0031] like Figure 1 As shown, the carrier aggregation scheduling method includes steps S101 to S104.

[0032] Step S101: Acquire a candidate auxiliary carrier frequency band for a base station to perform a carrier aggregation scheduling operation from an inter-frequency neighboring cell of the base station.

[0033] Exemplarily, a candidate auxiliary carrier frequency band that can be used to perform a carrier aggregation scheduling operation in an inter-frequency neighboring cell of a base station is obtained.

[0034] For example, firstly, all the secondary carrier frequency bands that can be detected in the inter-frequency neighboring cell of the base station are obtained, and then the secondary carrier frequency bands are screened according to information such as carrier signal strength to determine the candidate secondary carrier frequency bands from all the secondary carrier frequency bands.

[0035] Optionally, before executing the scheduling method for carrier aggregation, it is also possible to identify the user equipment according to the buffer test report (BSR) to determine whether to start the secondary carrier adding process of carrier aggregation.

[0036] For example, from the perspective of service demand, the uplink and downlink BSRs are introduced based on historical and current user behaviors to determine whether it is necessary to start the carrier aggregation function for the actual service, so as to avoid small packet services triggering the carrier aggregation function and wasting the resources of the auxiliary carrier.

[0037] BSR(t)_UL_Average and BSR(t)_DL_Average are defined as the average buffering amount of uplink and downlink service data respectively. If the current BSR(t)_UL_Average / BSR(t)_DL_Average ≥ the preset threshold, the function of adding a secondary carrier to carrier aggregation is started.

[0038] BSR(t)_UL_average = α*BSR(t-1)_UL_average + (1-α)*BSR(t)_UL_instantaneous (Formula 1)

[0039] BSR(t)_DL_average = α*BSR(t-1)_DL_average + (1-α)*BSR(t)_DL_instantaneous (Formula 2)

[0040] α in Formula 1 and Formula 2 is a weight for obtaining the average buffer size of current uplink and downlink service data, and can be set according to requirements.

[0041] In one embodiment, an alternative auxiliary carrier frequency band for the base station to perform carrier aggregation scheduling operations is obtained from the inter-frequency neighboring cell of the base station, including: obtaining the auxiliary carrier frequency band corresponding to the inter-frequency neighboring cell of the base station, and obtaining the measurement result corresponding to the auxiliary carrier frequency band; determining the auxiliary carrier frequency band as the alternative auxiliary carrier frequency band for the base station to perform carrier aggregation scheduling operations based on the measurement result and a preset auxiliary carrier addition threshold.

[0042] Exemplarily, the inter-frequency neighboring area measurement result Mn corresponding to the auxiliary carrier frequency band, the specific frequency offset 0fn of the inter-frequency neighboring area, the specific cell offset 0cn of the inter-frequency neighboring area, the hysteresis parameter Hys of the A4 event, and the preset auxiliary carrier addition threshold Thresh_1 are obtained from the measurement results corresponding to the auxiliary carrier frequency band to determine whether the auxiliary carrier frequency band is used as an alternative auxiliary carrier frequency band for the carrier aggregation scheduling operation. The judgment conditions are shown in Formula 3.

[0043] Mn+0fn+0cn-Hys>Thresh_1 (Formula 3)

[0044] Among them, the specific frequency offset 0fn of the inter-frequency neighboring cell is 0 by default; the specific cell offset 0cn of the inter-frequency neighboring cell is usually 0.

[0045] Therefore, when relevant data in the measurement result of the secondary carrier frequency band satisfies Formula 3, the secondary carrier frequency band is used as a candidate secondary carrier frequency band for the carrier aggregation scheduling operation.

[0046] Step S102: Acquire status data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band.

[0047] Exemplarily, initial state data corresponding to the base station operating in the target carrier frequency band and mixed state data corresponding to the base station operating in the target carrier frequency band and adding any one of the alternative auxiliary carrier frequency bands are obtained, and then the mixed state data is compared with the initial state data.

[0048] For example, if the target carrier frequency band is MP1, and the candidate auxiliary carrier frequency bands include P1 and P2, it is necessary to obtain the initial state data corresponding to the base station working in MP1, the first mixed state data of the base station working in MP1+P1, and the second mixed state data of the base station working in MP1+P2.

[0049] In one embodiment, the state data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band is obtained. Specifically, referring to Figure 2 , step S102 includes: sub-steps S1021 to S1023, wherein the state data includes first state data, second state data and third state data.

[0050] Sub-step S1021: Acquire first state data of the base station operating in a target carrier frequency band, where the first state data includes a first congestion degree and a first spectrum efficiency;

[0051] Exemplarily, measurement data of a base station operating in a target carrier frequency band is obtained, where the measurement data includes a first congestion degree and a first spectrum efficiency.

[0052] Among them, the first congestion includes the uplink BSR congestion DC_UL_1 = BSR_UL_1 / Thrput_UL_1 and the downlink BSR congestion DC_DL_1 = BSR_DL_1 / Thrput_DL_1 of the user equipment when the base station operates in the target carrier frequency band. If the BSR continues to increase, but the Thrput of the user equipment in the target carrier frequency band is insufficient, the congestion DC_UL_1 and DC_DL_1 will continue to increase.

[0053] The first spectrum efficiency includes a first uplink spectrum efficiency SE_UL_SC_1 and a first downlink spectrum efficiency SE_DL_SC_1.

[0054] Sub-step S1022: acquiring second status data obtained by measuring the candidate secondary carrier frequency band, the second status data including the coverage level, network quality and network resource availability of the candidate secondary carrier frequency band;

[0055] Exemplarily, second status data corresponding to each of the candidate secondary carrier frequency bands is obtained, where the second status data includes coverage level, network quality and network resource availability of each of the candidate secondary carrier frequency bands.

[0056] Sub-step S1023: Acquire third state data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band, the third state data including a second congestion degree and a second spectrum efficiency.

[0057] Exemplarily, if any one of the candidate auxiliary carrier frequency bands is aggregated with the target carrier frequency band, third state data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band is obtained, and the third state data includes a second congestion degree and a second spectrum efficiency.

[0058] Among them, the second congestion includes the uplink BSR congestion DC_UL_2 = BSR_UL_2 / Thrput_UL_2 and the downlink BSR congestion DC_DL_2 = BSR_DL_2 / Thrput_DL_2 of the user equipment when the base station operates in the target carrier frequency band and any one of the alternative secondary carrier frequency bands. BSR_UL_2, BSR_DL_2, Thrput_UL_2, and Thrput_DL_2 are the data after any one of the alternative secondary carrier frequency bands is added to the target carrier frequency band.

[0059] The second spectrum efficiency includes a second uplink spectrum efficiency SE_UL_SC_2 and a second downlink spectrum efficiency SE_DL_SC_2.

[0060] In one embodiment, second status data obtained by measuring an alternative auxiliary carrier frequency band is obtained, and the second status data includes the coverage level, network quality and network resource availability of the alternative auxiliary carrier frequency band, including: obtaining a measurement report corresponding to the alternative auxiliary carrier frequency band, and determining the coverage level and network quality corresponding to the alternative auxiliary carrier frequency band according to the measurement report; obtaining the real-time network resource availability of the alternative auxiliary carrier frequency band according to an interface configured between carriers, and determining the network resource availability of the alternative auxiliary carrier frequency band according to the real-time network resource availability.

[0061] Exemplarily, the terminal reports the measurement data of each auxiliary carrier frequency band in the alternative auxiliary carrier frequency band to obtain relevant data including coverage level RSRP, signal-to-noise ratio (Singalto Interference Noise Rdtio, SINR), reference signal received quality (Reference Signal Recived Quality, RSRQ), etc. SINR or RSRQ is used as an evaluation parameter of network quality, and SINR is preferred.

[0062] Optionally, when the terminal does not support SINR measurement within the system, the SINR in the corresponding trigger amount or reported amount is replaced with RSRQ, that is, RSRQ is used as an evaluation parameter of network quality.

[0063] Exemplarily, the XNAP interface (XnApplication Protocol) configured between the target carrier frequency band and the auxiliary carrier frequency band is used to obtain the real-time network resource availability of the alternative auxiliary carrier frequency band, and the network resource availability of the alternative auxiliary carrier frequency band is determined based on the real-time network resource availability.

[0064] For example, the real-time network resource availability rate at time t is stored, and the average value is taken together with the real-time network resource availability rate at time t+1, so that the average value of the real-time network resource availability rates at time t and time t+1 is used as the network resource availability rate of the alternative auxiliary carrier frequency band.

[0065] In one embodiment, the network resource availability of the alternative auxiliary carrier frequency band is determined based on the real-time network resource availability, including: obtaining a first network resource availability corresponding to the alternative auxiliary carrier frequency band at a historical moment and a second network resource availability at a current moment; determining an average network resource availability corresponding to the first network resource availability within a first preset period based on the first network resource availability; determining a real-time network resource availability corresponding to the first network resource availability within a second preset period based on the second network resource availability; and determining the network resource availability of the alternative auxiliary carrier frequency band of an inter-frequency neighboring area based on the average network resource availability and the real-time network resource availability.

[0066] Exemplarily, the relevant network resource availability obtained within the first preset period pushed forward from the current moment is used as the first network resource availability, and then the first network resource availability is averaged as the mean network resource availability. The network resource availability obtained within the second preset period pushed forward from the current moment is used as the second network resource availability at the current moment, and the second network resource availability is averaged as the real-time network resource availability, wherein the second preset period is less than the first preset period. Then the minimum value between the mean network resource availability and the real-time network resource availability is used as the network resource availability (CCE / PRB Availability Rate) for determining the alternative auxiliary carrier frequency band of the hetero-frequency neighboring area.

[0067] For example, the first network resource availability is the average of the historical network resource availability filtered out at a granularity of 7*24 hours from the current moment, and then the average of the historical network resource availability filtered out at a granularity of 7*24 hours is calculated to obtain the average network resource availability. The second network resource availability is the historical network resource availability filtered out at a granularity of N*15 minutes from the current moment, and then the average of the historical network resource availability filtered out at a granularity of N*15 minutes is calculated to obtain the real-time network resource availability; finally, the network resource availability of the alternative auxiliary carrier frequency band is calculated as MIN (average network resource availability, real-time network resource availability).

[0068] Step S103: Obtain network performance evaluation parameters of the auxiliary carrier frequency band according to the status data.

[0069] Exemplarily, the objective function of the network performance evaluation corresponding to the auxiliary carrier frequency band is determined according to the status data, and then the network performance evaluation parameters are determined according to the relevant data of the auxiliary carrier frequency band in combination with the objective function.

[0070] In one embodiment, the network performance evaluation parameter of the auxiliary carrier frequency band is obtained according to the status data. Specifically, referring to Figure 3 , step S103 includes: sub-step S1031 to sub-step S1033.

[0071] Sub-step S1031: determining, according to the first congestion degree and the second congestion degree, a congestion degree weight corresponding to adding the candidate secondary carrier frequency band by the base station;

[0072] Exemplarily, the congestion weight W corresponding to the addition of the candidate auxiliary carrier frequency band by the base station is determined according to the change value between the first congestion degree and the second congestion degree. congestion .

[0073] For example, the difference or ratio between the first congestion degree and the second congestion degree is used as the congestion degree weight corresponding to the candidate secondary carrier frequency band added by the base station.

[0074] Sub-step S1032: determining, according to the first spectrum efficiency and the second spectrum efficiency, a spectrum efficiency weight corresponding to adding the candidate auxiliary carrier frequency band by the base station;

[0075] Exemplarily, the spectrum efficiency weight W corresponding to the addition of the candidate auxiliary carrier frequency band by the base station is determined according to the change value between the first spectrum efficiency and the second spectrum efficiency. SE .

[0076] For example, the difference or ratio between the first spectrum efficiency and the second spectrum efficiency is used as the congestion weight corresponding to the candidate auxiliary carrier frequency band added by the base station.

[0077] Sub-step S1033: obtaining a network performance evaluation parameter of the auxiliary carrier frequency band according to the coverage level, the network quality, the network resource availability, the congestion weight and the spectrum efficiency weight.

[0078] Exemplarily, a summation formula is established using coverage level, network quality, network resource availability, congestion weight and spectrum efficiency weight, and then the sum of coverage level, network quality, network resource availability, congestion weight and spectrum efficiency weight is used as a network performance evaluation parameter.

[0079] In one embodiment, the network performance evaluation parameters of the auxiliary carrier frequency band are obtained according to the coverage level, the network quality, the network resource availability, the congestion weight and the spectrum efficiency weight, including: determining a first weight corresponding to the coverage level according to the sparseness of the network scenario distribution in the base station working scenario, determining a second weight corresponding to the network quality according to the site spacing in the network scenario distribution in the base station working scenario, and determining a third weight corresponding to the network resource availability according to the business demand of the network scenario in the base station working scenario; determining a first value according to the product of the first weight and the coverage level, determining a second value according to the product of the second weight and the network quality, and determining a third value according to the product of the third weight and the network resource availability; determining the network performance evaluation parameters of the auxiliary carrier frequency band according to the sum of the first value, the second value, the third value, the congestion weight and the spectrum efficiency weight.

[0080] For example, the coverage level, network quality, and network resource availability are all characteristics of the secondary carrier frequency band's own attributes, based on which different weights are assigned to the coverage level, network quality, and network resource availability to better describe the secondary carrier frequency band. Then, dynamic adjustments can be made according to different secondary carrier frequency bands to adapt to different network scenarios and environmental requirements.

[0081] For example, for suburban and rural areas, which are generally sparsely populated with sites and low traffic areas, the first weight corresponding to the coverage level can be configured to be smaller, while the second and third weights can be configured to be larger, and the sum of the first weight, the second weight and the third weight is 1.

[0082] For example, for general urban areas, densely populated urban areas and other scene areas, the site spacing is relatively small (generally 150 meters to 350 meters) and the interference is large. The second weight corresponding to the network quality can be configured smaller, and the first and third weights can be configured larger.

[0083] For example, for densely populated urban areas, hot spots and other scene areas, due to the dense population, large business demand and high load, the third weight corresponding to the network resource availability can be configured smaller, while the first weight and the second weight can be configured larger.

[0084] Optionally, the evaluation of scene complexity may also consider the coordination of three weight factors to achieve accuracy in adding secondary carrier neighboring cells, and then the first weight, the second weight and the third weight may be set and adjusted according to demand.

[0085] Exemplarily, the coverage level RSRP*the first weight Q1 obtains the first value W RSRP , network quality SINR / RSRQ*second weight Q2 to obtain the second value W SINR / RSRQ , network resource availability CCE / PRB*third weight Q3 to obtain the third value W CCE / PRB , and then W RSRP +W SINR / RSRQ +W CCE / PRB +W congestion +W SE The results are used as network performance evaluation parameters.

[0086] In one embodiment, the network performance evaluation parameters of the auxiliary carrier frequency band are determined according to the sum of the first value, the second value, the third value, the congestion weight and the spectrum efficiency weight, including: determining the relief ratio corresponding to the congestion of the base station according to the first congestion and the second congestion; when the relief ratio is greater than the relief ratio threshold, increasing the congestion weight, otherwise reducing the congestion weight, and then determining the target congestion weight; obtaining the third spectrum efficiency corresponding to the user terminal operating in the auxiliary carrier frequency band; when the second spectrum efficiency is greater than the first spectrum efficiency and the third spectrum efficiency is greater than the second spectrum efficiency, increasing the spectrum efficiency weight, otherwise reducing the spectrum efficiency weight, and then determining the target spectrum efficiency weight; adjusting the network performance evaluation parameters of the auxiliary carrier frequency band according to the sum of the first value, the second value, the third value, the target congestion weight and the target spectrum efficiency weight.

[0087] Exemplarily, the first congestion degree includes the first uplink BSR congestion degree and the first downlink BSR congestion degree, and the second congestion degree includes the second uplink BSR congestion degree and the second downlink BSR congestion degree, and then the relief ratio corresponding to the congestion degree of the base station is determined according to the first uplink BSR congestion degree, the first downlink BSR congestion degree, the second uplink BSR congestion degree and the second downlink BSR congestion degree.

[0088] For example, the relief ratio is the first uplink BSR congestion degree / the second uplink BSR congestion degree, or the first downlink BSR congestion degree / the second downlink BSR congestion degree.

[0089] For example, when the relief ratio is greater than the relief ratio threshold, it indicates that the relief effect brought by the auxiliary carrier frequency band reaches the expected value, and the congestion weight W is increased. congestion Increase, otherwise reduce the congestion weight W congestion .

[0090] For example, when the relief ratio is greater than the relief ratio threshold, the congestion weight is increased by 1; otherwise, the congestion weight is decreased by 1.

[0091] Exemplarily, a third spectrum efficiency corresponding to the user terminal operating in the secondary carrier frequency band is obtained, wherein the third spectrum efficiency includes a third uplink spectrum efficiency SE_UL_SC_3 and a third downlink spectrum efficiency SE_DL_SC_3.

[0092] Exemplarily, when the second spectrum efficiency is greater than the first spectrum efficiency, and the third spectrum efficiency is greater than the second spectrum efficiency, the spectrum efficiency weight W is increased. SE , otherwise reduce the spectrum efficiency weight W SE .

[0093] For example, when the second uplink spectrum efficiency SE_UL_SC_2 minus the first uplink spectrum efficiency SE_UL_SC_1 is greater than 0, and the third uplink spectrum efficiency SE_UL_SC_3 minus the second downlink spectrum efficiency SE_DL_SC_2 is greater than 0, the spectrum efficiency weight W is set to SE Add 1, otherwise the spectrum efficiency weight W SE Subtract 1.

[0094] Alternatively, when the second downlink spectrum efficiency SE_DL_SC_2 minus the first downlink spectrum efficiency SE_DL_SC_1 is greater than 0, and the third downlink spectrum efficiency SE_DL_SC_3 minus the second downlink spectrum efficiency SE_DL_SC_2 is greater than 0, the spectrum efficiency weight W is set to SE Add 1, otherwise the spectrum efficiency weight W SE Subtract 1.

[0095] Exemplarily, after obtaining the target congestion weight and the target spectrum efficiency weight, the network performance evaluation parameter of the auxiliary carrier frequency band is adjusted.

[0096] Step S104: determining a target secondary carrier frequency band from the candidate secondary carrier frequency bands according to the network performance evaluation parameter, so that a carrier aggregation scheduling operation is performed according to the target secondary carrier frequency band.

[0097] Exemplarily, a corresponding network performance evaluation parameter is obtained for each of the candidate secondary carrier frequency bands, and the network performance evaluation parameters are arranged according to size, thereby obtaining the target secondary carrier frequency band.

[0098] For example, the top three ranked candidate auxiliary carrier frequency bands are selected as target auxiliary carrier frequency bands, or the auxiliary carrier frequency bands whose network performance evaluation parameters are greater than a preset threshold are selected as target auxiliary carrier frequency bands.

[0099] Exemplarily, after the target secondary carrier frequency band is obtained, a carrier aggregation scheduling operation is performed on the target secondary carrier frequency band.

[0100] In one embodiment, the method further includes: updating the target secondary carrier frequency band according to a preset update strategy, and performing a carrier aggregation scheduling operation according to the updated target secondary carrier frequency band.

[0101] Exemplarily, after performing carrier aggregation scheduling operation on the target secondary carrier frequency band, the network performance evaluation parameters corresponding to the alternative secondary carrier frequency band can be retrieved within a preset time, and then the latest target secondary carrier frequency band can be obtained, so as to perform carrier aggregation scheduling operation according to the latest target secondary carrier frequency band.

[0102] Please refer to Figure 4 , Figure 4A schematic diagram of a specific implementation flow of the scheduling method for carrier aggregation provided in this embodiment is as follows: Figure 4 As shown, first determine whether it is necessary to perform carrier aggregation operation. When the carrier aggregation operation requirements are met, obtain the candidate auxiliary carrier frequency band, and then obtain the network performance evaluation parameters corresponding to each auxiliary carrier frequency band in the candidate auxiliary carrier frequency band, so as to determine the target auxiliary carrier frequency band by sorting according to the network performance evaluation parameters, and finally perform carrier aggregation operation according to the target auxiliary carrier frequency band. When the preset conditions are met, the target auxiliary carrier frequency band is obtained again, and then the carrier aggregation operation is re-executed. The problem that the existing solution cannot guarantee the optimal effect after the carrier aggregation function is activated, which reduces the utilization rate of wireless resources when the wireless resources of the heterofrequency neighboring cells are occupied and consumed and the endogenous computing power of the main carrier is consumed is solved, thereby realizing the accurate addition of auxiliary carrier frequency bands and improving the utilization rate of wireless resources.

[0103] See also Figure 5 , Figure 5 A carrier aggregation scheduling device 200 is provided in an embodiment of the present application, and the carrier aggregation scheduling device 200 includes: a data acquisition module 201, an information collection module 202, a data analysis module 203, and a data determination module 204, wherein the data acquisition module 201 is used to obtain an alternative auxiliary carrier frequency band for the base station to perform a carrier aggregation scheduling operation from an inter-frequency neighboring area of ​​the base station; the information collection module 202 is used to obtain status data of the base station operating at a target carrier frequency band and the alternative auxiliary carrier frequency band; the data analysis module 203 is used to obtain a network performance evaluation parameter of the auxiliary carrier frequency band according to the status data; and the data determination module 204 is used to determine a target auxiliary carrier frequency band from the alternative auxiliary carrier frequency band according to the network performance evaluation parameter, so that a carrier aggregation scheduling operation is performed according to the target auxiliary carrier frequency band.

[0104] In one embodiment, the data acquisition module 201 performs the following steps in the process of acquiring a candidate auxiliary carrier frequency band for the base station to perform a carrier aggregation scheduling operation from an inter-frequency neighboring cell of the base station:

[0105] Acquire a secondary carrier frequency band corresponding to an inter-frequency neighboring cell of the base station, and obtain a measurement result corresponding to the secondary carrier frequency band;

[0106] The secondary carrier frequency band is determined according to the measurement result and a preset secondary carrier adding threshold as the candidate secondary carrier frequency band for the base station to perform a carrier aggregation scheduling operation.

[0107] In one embodiment, the state data includes first state data, second state data, and third state data. In the process of acquiring the state data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band, the information collection module 202 executes:

[0108] Acquire first state data of the base station operating in a target carrier frequency band, the first state data comprising a first congestion degree and a first spectrum efficiency;

[0109] Acquire second status data obtained by measuring the candidate secondary carrier frequency band, where the second status data includes a coverage level, a network quality, and a network resource availability rate of the candidate secondary carrier frequency band;

[0110] Acquire third state data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band, where the third state data includes a second congestion degree and a second spectrum efficiency.

[0111] In one embodiment, the information collection module 202 performs the following steps during the process of acquiring the second status data obtained by measuring the candidate auxiliary carrier frequency band, wherein the second status data includes the coverage level, network quality, and network resource availability of the candidate auxiliary carrier frequency band:

[0112] Obtaining a measurement report corresponding to the candidate secondary carrier frequency band, and determining a coverage level and a network quality corresponding to the candidate secondary carrier frequency band according to the measurement report;

[0113] The real-time network resource availability rate of the candidate auxiliary carrier frequency band is acquired according to an interface configured between carriers, and the network resource availability rate of the candidate auxiliary carrier frequency band is determined according to the real-time network resource availability rate.

[0114] In one embodiment, during the process of determining the network resource availability of the candidate auxiliary carrier frequency band according to the real-time network resource availability, the information collection module 202 performs:

[0115] Obtaining a first network resource availability rate corresponding to the candidate auxiliary carrier frequency band at a historical moment and a second network resource availability rate at a current moment;

[0116] Determine, according to the first network resource availability, an average network resource availability corresponding to the first network resource availability within a first preset period;

[0117] Determine a real-time network resource availability rate corresponding to the first network resource availability rate within a second preset period according to the second network resource availability rate;

[0118] The network resource availability of the candidate auxiliary carrier frequency band of the inter-frequency neighboring cell is determined according to the mean network resource availability and the real-time network resource availability.

[0119] In one implementation, the data analysis module 203 performs, in the process of obtaining the network performance evaluation parameter of the secondary carrier frequency band according to the status data:

[0120] Determining, according to the first congestion degree and the second congestion degree, a congestion degree weight corresponding to adding the candidate secondary carrier frequency band by the base station;

[0121] Determining, according to the first spectrum efficiency and the second spectrum efficiency, a spectrum efficiency weight corresponding to adding the candidate auxiliary carrier frequency band by the base station;

[0122] A network performance evaluation parameter of the auxiliary carrier frequency band is obtained according to the coverage level, the network quality, the network resource availability, the congestion weight and the spectrum efficiency weight.

[0123] In one implementation, the data analysis module 203 performs, in the process of obtaining the network performance evaluation parameter of the auxiliary carrier frequency band according to the coverage level, the network quality, the network resource availability, the congestion weight, and the spectrum efficiency weight:

[0124] Determine a first weight corresponding to the coverage level according to the sparseness of the network scenario distribution in the base station working scenario, determine a second weight corresponding to the network quality according to the site spacing in the network scenario distribution in the base station working scenario, and determine a third weight corresponding to the network resource availability according to the service demand of the network scenario in the base station working scenario;

[0125] Determine a first value according to the product of the first weight and the coverage level, determine a second value according to the product of the second weight and the network quality, and determine a third value according to the product of the third weight and the network resource availability;

[0126] A network performance evaluation parameter of the auxiliary carrier frequency band is determined according to the sum of the first value, the second value, the third value, the congestion weight, and the spectrum efficiency weight.

[0127] In one implementation, the data analysis module 203 performs, in the process of determining the network performance evaluation parameter of the auxiliary carrier frequency band according to the sum of the first value, the second value, the third value, the congestion weight, and the spectrum efficiency weight:

[0128] Determining a relief ratio corresponding to the congestion degree of the base station according to the first congestion degree and the second congestion degree;

[0129] When the relief ratio is greater than the relief ratio threshold, the congestion weight is increased, otherwise the congestion weight is decreased, and then a target congestion weight is determined;

[0130] Obtaining a third spectrum efficiency corresponding to the user terminal operating in the secondary carrier frequency band;

[0131] When the second spectrum efficiency is greater than the first spectrum efficiency and the third spectrum efficiency is greater than the second spectrum efficiency, increase the spectrum efficiency weight; otherwise, reduce the spectrum efficiency weight, and then determine a target spectrum efficiency weight;

[0132] The network performance evaluation parameter of the auxiliary carrier frequency band is adjusted according to the sum of the first value, the second value, the third value, the target congestion weight, and the target spectrum efficiency weight.

[0133] In one implementation, the carrier aggregation scheduling apparatus 200 further performs:

[0134] The target secondary carrier frequency band is updated according to a preset update strategy, and a carrier aggregation scheduling operation is performed according to the updated target secondary carrier frequency band.

[0135] It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the device described above can refer to the corresponding process in the aforementioned carrier aggregation scheduling method embodiment, and will not be repeated here.

[0136] See also Figure 6 , Figure 6 A schematic block diagram of the structure of a base station provided in an embodiment of the present invention.

[0137] like Figure 6 As shown, the base station 300 includes a processor 301 and a memory 302, and the processor 301 and the memory 302 are connected via a bus 303, such as an I2C (Inter-integrated Circuit) bus.

[0138] Specifically, the processor 301 is used to provide computing and control capabilities to support the operation of the entire XXXX device. The processor 301 can be a central processing unit (CPU), and the processor 301 can also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0139] Specifically, the memory 302 may be a Flash chip, a read-only memory (ROM) disk, an optical disk, a USB flash drive, or a mobile hard disk.

[0140] Those skilled in the art will understand that Figure 6 The structure shown in the figure is only a block diagram of a partial structure related to the embodiment of the present invention, and does not constitute a limitation on the base station to which the embodiment of the present invention is applied. The specific server may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0141] The processor is used to run a computer program stored in a memory, and implement any one of the carrier aggregation scheduling methods provided by the embodiments of the present invention when executing the computer program.

[0142] In one embodiment, the processor is used to run a computer program stored in the memory, and implements the following steps when executing the computer program:

[0143] Acquire a candidate auxiliary carrier frequency band for the base station to perform a carrier aggregation scheduling operation from an inter-frequency neighboring cell of the base station;

[0144] Acquire status data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band;

[0145] Obtaining a network performance evaluation parameter of the auxiliary carrier frequency band according to the status data;

[0146] A target secondary carrier frequency band is determined from the candidate secondary carrier frequency bands according to the network performance evaluation parameter, so that a carrier aggregation scheduling operation is performed according to the target secondary carrier frequency band.

[0147] In one embodiment, the processor 301, in the process of acquiring a candidate auxiliary carrier frequency band for the base station to perform a carrier aggregation scheduling operation from an inter-frequency neighboring cell of the base station, executes:

[0148] Acquire a secondary carrier frequency band corresponding to an inter-frequency neighboring cell of the base station, and obtain a measurement result corresponding to the secondary carrier frequency band;

[0149] The secondary carrier frequency band is determined according to the measurement result and a preset secondary carrier adding threshold as the candidate secondary carrier frequency band for the base station to perform a carrier aggregation scheduling operation.

[0150] In one embodiment, the state data includes first state data, second state data, and third state data. In the process of acquiring the state data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band, the processor 301 executes:

[0151] Acquire first state data of the base station operating in a target carrier frequency band, the first state data comprising a first congestion degree and a first spectrum efficiency;

[0152] Acquire second status data obtained by measuring the candidate secondary carrier frequency band, where the second status data includes a coverage level, a network quality, and a network resource availability rate of the candidate secondary carrier frequency band;

[0153] Acquire third state data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band, where the third state data includes a second congestion degree and a second spectrum efficiency.

[0154] In one embodiment, the processor 301 performs, during the process of acquiring second status data obtained by measuring the candidate secondary carrier frequency band, where the second status data includes a coverage level, a network quality, and a network resource availability rate of the candidate secondary carrier frequency band:

[0155] Obtaining a measurement report corresponding to the candidate secondary carrier frequency band, and determining a coverage level and a network quality corresponding to the candidate secondary carrier frequency band according to the measurement report;

[0156] The real-time network resource availability rate of the candidate auxiliary carrier frequency band is acquired according to an interface configured between carriers, and the network resource availability rate of the candidate auxiliary carrier frequency band is determined according to the real-time network resource availability rate.

[0157] In one embodiment, during the process of determining the network resource availability of the candidate auxiliary carrier frequency band according to the real-time network resource availability, the processor 301 executes:

[0158] Obtaining a first network resource availability rate corresponding to the candidate auxiliary carrier frequency band at a historical moment and a second network resource availability rate at a current moment;

[0159] Determine, according to the first network resource availability, an average network resource availability corresponding to the first network resource availability within a first preset period;

[0160] Determine a real-time network resource availability rate corresponding to the first network resource availability rate within a second preset period according to the second network resource availability rate;

[0161] The network resource availability of the candidate auxiliary carrier frequency band of the inter-frequency neighboring cell is determined according to the mean network resource availability and the real-time network resource availability.

[0162] In one embodiment, the processor 301, in the process of obtaining the network performance evaluation parameter of the secondary carrier frequency band according to the status data, executes:

[0163] Determining, according to the first congestion degree and the second congestion degree, a congestion degree weight corresponding to adding the candidate secondary carrier frequency band by the base station;

[0164] Determining, according to the first spectrum efficiency and the second spectrum efficiency, a spectrum efficiency weight corresponding to adding the candidate auxiliary carrier frequency band by the base station;

[0165] A network performance evaluation parameter of the auxiliary carrier frequency band is obtained according to the coverage level, the network quality, the network resource availability, the congestion weight and the spectrum efficiency weight.

[0166] In one embodiment, the processor 301, in the process of obtaining the network performance evaluation parameter of the auxiliary carrier frequency band according to the coverage level, the network quality, the network resource availability, the congestion weight, and the spectrum efficiency weight, executes:

[0167] Determine a first weight corresponding to the coverage level according to the sparseness of the network scenario distribution in the base station working scenario, determine a second weight corresponding to the network quality according to the site spacing in the network scenario distribution in the base station working scenario, and determine a third weight corresponding to the network resource availability according to the service demand of the network scenario in the base station working scenario;

[0168] Determine a first value according to the product of the first weight and the coverage level, determine a second value according to the product of the second weight and the network quality, and determine a third value according to the product of the third weight and the network resource availability;

[0169] A network performance evaluation parameter of the auxiliary carrier frequency band is determined according to the sum of the first value, the second value, the third value, the congestion weight, and the spectrum efficiency weight.

[0170] In one embodiment, the processor 301, in the process of determining the network performance evaluation parameter of the auxiliary carrier frequency band according to the sum of the first value, the second value, the third value, the congestion weight, and the spectrum efficiency weight, executes:

[0171] Determining a relief ratio corresponding to the congestion degree of the base station according to the first congestion degree and the second congestion degree;

[0172] When the relief ratio is greater than the relief ratio threshold, the congestion weight is increased, otherwise the congestion weight is decreased, and then a target congestion weight is determined;

[0173] Obtaining a third spectrum efficiency corresponding to the user terminal operating in the secondary carrier frequency band;

[0174] When the second spectrum efficiency is greater than the first spectrum efficiency and the third spectrum efficiency is greater than the second spectrum efficiency, increase the spectrum efficiency weight; otherwise, reduce the spectrum efficiency weight, and then determine a target spectrum efficiency weight;

[0175] The network performance evaluation parameter of the auxiliary carrier frequency band is adjusted according to the sum of the first value, the second value, the third value, the target congestion weight, and the target spectrum efficiency weight.

[0176] In one embodiment, the processor 301 further executes:

[0177] The target secondary carrier frequency band is updated according to a preset update strategy, and a carrier aggregation scheduling operation is performed according to the updated target secondary carrier frequency band.

[0178] It should be noted that technical personnel in the relevant field can clearly understand that for the convenience and conciseness of description, the specific working process of the base station described above can refer to the corresponding process in the aforementioned carrier aggregation scheduling method embodiment, and will not be repeated here.

[0179] An embodiment of the present invention also provides a storage medium for computer-readable storage, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any carrier aggregation scheduling method provided in the description of the embodiment of the present invention.

[0180] The storage medium may be an internal storage unit of the base station described in the foregoing embodiment, such as a hard disk or memory of the base station. The storage medium may also be an external storage device of the base station, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc., equipped on the base station.

[0181] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In a hardware embodiment, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0182] It should be understood that the term "and / or" used in the present specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, including these combinations. It should be noted that, in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "including a..." does not exclude the presence of other identical elements in the process, method, article or system including the element.

[0183] The serial numbers of the embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments. The above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A carrier aggregation scheduling method, characterized in that: Applied to a base station, the method comprises: Acquire a candidate auxiliary carrier frequency band for the base station to perform a carrier aggregation scheduling operation from an inter-frequency neighboring cell of the base station; Acquire status data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band; Obtaining a network performance evaluation parameter of the auxiliary carrier frequency band according to the status data; A target secondary carrier frequency band is determined from the candidate secondary carrier frequency bands according to the network performance evaluation parameter, so that a carrier aggregation scheduling operation is performed according to the target secondary carrier frequency band.

2. The method according to claim 1, characterized in that: The acquiring, from the inter-frequency neighboring cell of the base station, a candidate auxiliary carrier frequency band for the base station to perform a carrier aggregation scheduling operation includes: Acquire a secondary carrier frequency band corresponding to an inter-frequency neighboring cell of the base station, and obtain a measurement result corresponding to the secondary carrier frequency band; The secondary carrier frequency band is determined according to the measurement result and a preset secondary carrier adding threshold as the candidate secondary carrier frequency band for the base station to perform a carrier aggregation scheduling operation.

3. The method according to claim 1, characterized in that: The state data includes first state data, second state data, and third state data, and obtaining the state data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band includes: Acquire first state data of the base station operating in a target carrier frequency band, the first state data comprising a first congestion degree and a first spectrum efficiency; Acquire second status data obtained by measuring the candidate secondary carrier frequency band, where the second status data includes a coverage level, a network quality, and a network resource availability rate of the candidate secondary carrier frequency band; Acquire third state data of the base station operating in the target carrier frequency band and the candidate auxiliary carrier frequency band, where the third state data includes a second congestion degree and a second spectrum efficiency.

4. The method according to claim 3, characterized in that: Acquiring second status data obtained by measuring the candidate auxiliary carrier frequency band, where the second status data includes a coverage level, a network quality, and a network resource availability rate of the candidate auxiliary carrier frequency band, including: Obtaining a measurement report corresponding to the candidate secondary carrier frequency band, and determining a coverage level and a network quality corresponding to the candidate secondary carrier frequency band according to the measurement report; The real-time network resource availability rate of the candidate auxiliary carrier frequency band is acquired according to an interface configured between carriers, and the network resource availability rate of the candidate auxiliary carrier frequency band is determined according to the real-time network resource availability rate.

5. The method according to claim 4, characterized in that: The determining the network resource availability of the candidate auxiliary carrier frequency band according to the real-time network resource availability includes: Obtaining a first network resource availability rate corresponding to the candidate auxiliary carrier frequency band at a historical moment and a second network resource availability rate at a current moment; Determine, according to the first network resource availability, an average network resource availability corresponding to the first network resource availability within a first preset period; Determine a real-time network resource availability rate corresponding to the first network resource availability rate within a second preset period according to the second network resource availability rate; The network resource availability of the candidate auxiliary carrier frequency band of the inter-frequency neighboring cell is determined according to the mean network resource availability and the real-time network resource availability.

6. The method according to claim 3, characterized in that: The obtaining, according to the status data, a network performance evaluation parameter of the auxiliary carrier frequency band comprises: Determining, according to the first congestion degree and the second congestion degree, a congestion degree weight corresponding to adding the candidate secondary carrier frequency band by the base station; Determining, according to the first spectrum efficiency and the second spectrum efficiency, a spectrum efficiency weight corresponding to adding the candidate auxiliary carrier frequency band by the base station; A network performance evaluation parameter of the auxiliary carrier frequency band is obtained according to the coverage level, the network quality, the network resource availability, the congestion weight and the spectrum efficiency weight.

7. The method according to claim 6, characterized in that: The obtaining the network performance evaluation parameter of the auxiliary carrier frequency band according to the coverage level, the network quality, the network resource availability, the congestion weight and the spectrum efficiency weight includes: Determine a first weight corresponding to the coverage level according to the sparseness of the network scenario distribution in the base station working scenario, determine a second weight corresponding to the network quality according to the site spacing in the network scenario distribution in the base station working scenario, and determine a third weight corresponding to the network resource availability according to the service demand of the network scenario in the base station working scenario; Determine a first value according to the product of the first weight and the coverage level, determine a second value according to the product of the second weight and the network quality, and determine a third value according to the product of the third weight and the network resource availability; A network performance evaluation parameter of the auxiliary carrier frequency band is determined according to the sum of the first value, the second value, the third value, the congestion weight, and the spectrum efficiency weight.

8. The method according to claim 7, characterized in that: The determining the network performance evaluation parameter of the auxiliary carrier frequency band according to the sum of the first value, the second value, the third value, the congestion weight and the spectrum efficiency weight includes: Determining a relief ratio corresponding to the congestion degree of the base station according to the first congestion degree and the second congestion degree; When the relief ratio is greater than the relief ratio threshold, the congestion weight is increased, otherwise the congestion weight is decreased, and then a target congestion weight is determined; Obtaining a third spectrum efficiency corresponding to the user terminal operating in the secondary carrier frequency band; When the second spectrum efficiency is greater than the first spectrum efficiency and the third spectrum efficiency is greater than the second spectrum efficiency, increase the spectrum efficiency weight; otherwise, reduce the spectrum efficiency weight, and then determine a target spectrum efficiency weight; The network performance evaluation parameter of the auxiliary carrier frequency band is adjusted according to the sum of the first value, the second value, the third value, the target congestion weight, and the target spectrum efficiency weight.

9. The method according to any one of claims 1 to 8, characterized in that: The method further comprises: The target secondary carrier frequency band is updated according to a preset update strategy, and a carrier aggregation scheduling operation is performed according to the updated target secondary carrier frequency band.

10. A base station, characterized in that: The base station includes a processor and a memory; The memory is used to store computer programs; The processor is configured to execute the computer program and implement the carrier aggregation scheduling method according to any one of claims 1 to 9 when executing the computer program.

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